[PATCH net-next 0/8] ibmvnic: Failover hardening

[David Miller]

From: Thomas Falcon <tlfalcon at linux.vnet.ibm.com>
Date: Wed, 23 May 2018 13:37:54 -0500

> Introduce additional transport event hardening to handle
> events during device reset. In the driver's current state,
> if a transport event is received during device reset, it can
> cause the device to become unresponsive as invalid operations
> are processed as the backing device context changes. After
> a transport event, the device expects a request to begin the
> initialization process. If the driver is still processing
> a previously queued device reset in this state, it is likely
> to fail as firmware will reject any commands other than the
> one to initialize the client driver's Command-Response Queue.
> 
> Instead of failing and becoming dormant, the driver will make
> one more attempt to recover and continue operation. This is
> achieved by setting a state flag, which if true will direct
> the driver to clean up all allocated resources and perform
> a hard reset in an attempt to bring the driver back to an
> operational state.

Series applied.